çç>> students returning to uc berkeley campus today for the start of a new semester are noticing some big changes on the side of the campus. christien kafton is live now where a major construction project is already changing the way students move around the campus. >> reporter: a lot of big changes you can see the sidewalk is closed. you can see the big sign that says this is an active construction zone. in the background you can see ezelman hall. ezelman hall will be have to be taken down to make room for a new building. crews work overnight. one of the crucial steps to demolishing the seismically unsafe building and building a whole new plaza. >> ezelman hall is going to be demolished starting in mid- march. we're going to be adding space to the mlk union here. we're going to be making to the plaza. >> reporter: worked kicked over high gear during the holiday break. students returning to class today noticed the changes right away. >> yeah we got e-mails about it that it was going to look different. >> and what do you think so far? >> i don't like it. because we have to walk mor